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Based on the above information and observation:
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Berdasarkan maklumat dan pemerhatian di atas:
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(a)
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State one suitable inference.
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[1 mark/markah]
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Nyatakan satu inferens yang sesuai.
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(b)
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State one suitable hypothesis.
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[1 mark/markah]
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Nyatakan satu hipotesis yang sesuai.
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(c)
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With the use of apparatus such as ripple tank, a vibration motor and other apparatus, describe an experimental framework to investigate the hypothesis stated in 4(b).
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Dengan menggunakan radas seperti tangki riak, motor penggetar dan radas-radas lain, terangkan satu rangka kerja untuk menyiasat hipotesis yang anda nyatakan di 4(b).
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In your description, state clearly the following:
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Dalam penerangan anda, jelaskan perkara berikut:
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(i)
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The aim of the experiment.
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Tujuan eksperimen.
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(ii)
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The variables in the experiment.
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Pembolehubah dalam eksperimen.
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(iii)
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The list of apparatus and materials.
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Senarai radas dan bahan.
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(iv)
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The arrangement of the apparatus.
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Susunan radas
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(v)
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The procedure of the experiment which should include one method of controlling manipulated variable and one method of measuring the responding variable.
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Presedur eksperimen yang mesti termasuk satu kaedah mengawal pembolehubah dimanipulasikan dan satu kaedah mengukur pembolehubah bergerak balas.
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(vi)
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The way you tabulate the data.
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Cara anda menjadualkan data.
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(vii)
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The way you analyse the data.
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Cara anda menganalisis data.
Making the right inference
The distance between two spherical dippers affects the distance between two constructive / destructive interference
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Building an appropriate hypothesis
The distance between two constructive / destructive interference increases when the distance between two spherical dippers.
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Stating the aim of the experiment
To investigate the relationship between the distance between two spherical dippers and the distance between two constructive / destructive interference
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Stating the correct variables
Manipulated variable : The distance between two spherical dippers Responding variable : The distance between two constructive / destructive interference
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Fixed variable : Depth of the water // speed of the motor // the perpendicular distance between the two spherical dippers and the place where the interference pattern is observed.
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List of appropriate apparatus and material
Ripple tank with its accessories, power supply, white paper and ruler.
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State a functional arrangement of the apparatus
Draws a labeled and functional diagram of the set up of the apparatus
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State how the manipulated variable is controlled
· Two spherical dippers are attached to the water
· The distance between spherical dippers on the screen are adjusted to a = 5.0 cm
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State how the responding variable is measured
The distance between two constructive / destructive interference on the screen, x is measured with the ruler and recorded.
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State how the procedure is repeated to obtain at least 5 sets of results
Repeat the previous step by increasing the distance between two spherical dippers, a = 6.0 cm, 7.0 cm, 8.0 cm and 9.0 cm
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Tabulating data
Show table with q and X as headings
a / cm
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x / cm
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5.0
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6.0
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7.0
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8.0
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9.0
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Analysing data
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